Lubricating composition and process for making the same



Patented July 26, 1927. f a

STEPHEN RENE ADLER, OF NEW ,YORK, n. Y.

LUBRIGATING COMPOSITION AND PROCESS FOR MAKING THE SAME.

No Drawing.

This invention relates to a composition of matter for lubricating thestring supporting screws on musical instruments, and to a process formaking said compositions.

The object of the invention is to provide a lubricating composition ofwax like consistency which can be readily applied to said screws andwhich will aid in setting them to the required position.

Another object of my invention is to provide a lubricating compositionof the above characteristics which while facilitating the smooth turningof said screws at the same time will have adhesive and setting qualitiesso that the screws will be kept exactly in a position to which they havebeen turned.

Other objects of the invention are: to provide a semi-solid wax likelubricating composition having the above advantages which also will beadaptable to be formed into suitable shapes convenient for application,will prevent the rusting of the screw threads, will not change and willnot be affected by the changes in the weather.

Other objects and advantages will be apparent from the description.

The improved composition comprises a mixture of vegetable oil, such asolive oil, cottonseed oil, petroleum jelly, finely precipitated chalk.powdered graphite, and a water solution of sodium hydroxide.

These ingredients have been found by me to be the niost effective inabout the follow ing proportions: olive oil 15 parts by weight,petroleum jelly 10 parts by weight, precipitated chalk 26 parts,powdered graphite 25 parts, sodium hydroxide solution (83%) 7 parts, thelye best is 33 percentage in strength. All the above ingredients may beof the common commercial variety or quality.

In preparing my improved composition of matter, the necessary olive oiland petroleum jelly are placed in a container and melted together, afterwhich the described amount of precipitated chalk and powdered graphiteare added into the molten mixture and mixed well with the same. Theresulting emulsion is kept at about 120 degrees Fahrenheit, stirredsteadily, and the sodium hydroxide solution is added thereto preferablyin a continuous slow manner, thereby saponifying the oil .andprecipitating part of the soap as a calcium soap owing to the doubledecomposition between the chalk and the sodium hydroxide.

The mixture is now kept at the above tem- Application filed May 27,1925. Serial No. 33,293.

per-ature for about 3 hours after which it is poured out of itscontainer, kneaded, pressed w into the desired shapes and allowed todry.

I preferably prepare my improved lubrieating composition of matter inthe form of small rods and it is a dark colored, semihard, wax likesubstance which may be applied to the screws or posts supporting thestrings of -a violin or other similar musical instruments. The screwsare then easy to turn. every movement will be smooth and steady, andthey will keep the exact position to which they are set. It is obvious,that a musical instrument the strings supporting screws of which havebeen treated with my composition of matter will be adaptable to a muchfiner adjustment of its tones than the one which did not receive suchtreatment. It is also obvious that my improved lubricating compositionof matter may be used not only for the screw posts of musicalinstruments but also for any other elements of devices where thecharacteristics of the same as hereinbefore described, may be of aspecial value.

I want to emphasize that the terms, cxpressions and proportions employedare used as terms of description and not of limitation. and I have nointention, in the use of such terms, expressions and proportions, ofexcluding any equivalents of the features shown and described, butrecognize that further embodiments may be possible within the scope ofthe invention claimed.

lVhat I claim as new, is

1. A process for preparing a composition of matter for lubricatingpurposes, said process comprising in mixing a vegetable oil, withpetroleum jelly, melting the aforesaid mixture, addingprecipitated chalkand powdered graphite to the aforesaid molten mixture, heating andagitating the same, thereby creating an emulsion of the mixture, addinga sodium hydroxide solution of moderate concentration to aforesaidemulsion, and heating and stirring the resulting mixture.

2. A composition of matter for lubricating the screw posts of musicalinstruments and similar devices, the constituent ingredients of saidcomposition consisting of a vegetable oil, petroleum jelly, precipitatedchalk and powdered graphite, and sodium hydroxide solution, thevegetable oil being saponified by the sodium hydroxide solution andpartly precipitated by the calcium compound formed by the doubledecomposition diuln and calcium soaps of a vegetable oil, between thepowdered chalk and the sodium petroleum jelly, precipitated chalk, and

hydroxide solution. powdered graphite.

8. A composition matter forlubricut- Signed at New York, in the countyof 5 mg the screw posts of musical. instruments New York and State otNewYork, this 15th and similar ClQVlCGS, the constituent ingrediday of May,A. D. 1925.

ents of said composition consisting of so- STEPHEN RENE ADLER.

